What does tax code D0 mean?
D0 taxes everything from this source at the higher rate of 40%, with no allowance — because your basic-rate band is already used by your main income.
England, Wales & NI, 2026/27. We compare your code with the standard 1257L.
On this code
2026/27All of this income is taxed at the higher rate (40%) (code D0).
- Gross salary
- £35,000
- Income Tax
- −£14,000
- National Insurance
- −£1,794
Take-home a year
£1,600 a month
£19,206
Compared with the standard 1257L code.
Verified · 2026/2721 June 2026
Effective rate —
Marginal rate — on your next £1
What it's worth in real terms
Your salary has the spending power of — in 2025 money — the pound has lost — since then. A rise of — would just keep pace.
Inflation: ONS Consumer Prices Index, latest May 2026.
How this was calculated
For the 2026/27 tax year (England, Wales & Northern Ireland) we apply your tax-free Personal Allowance, the Income Tax bands, employee National Insurance, and any student-loan repayment — each traced to a dated gov.uk/HMRC source. A pension contribution comes off before Income Tax (and before National Insurance too, for salary sacrifice). Over £100,000 the Personal Allowance tapers away, which is why the marginal rate jumps to about 60%.
The full method and every source is on our methodology page.
Built & maintained by the Pay Packet team · methodology sourced from HMRC · last reviewed 21 June 2026. About our figures →
Who has the D0 code?
A second job or pension where your main job already fills the 20% basic-rate band.
Is D0 the right code for you?
D0 can be right for a higher-rate earner with a second income. If your total income would not reach the higher rate, D0 means you are overpaying and should contact HMRC.
Not your code? Decode any code on the tax code checker, or browse all tax codes. If you think yours is wrong, contact HMRC — you can reclaim overpaid tax for the last four years.